There is no distinct boundary where the atmosphere ends; it just tapers away.

Don't look for distinct boundaries in Russian politics," he said, "because there aren't any.

Each group had relatively distinct boundaries, dialects and customs.

The term refers to any distinct boundary within which a system trusts all sub-systems (including data).

As social classes lack distinct boundaries the average American may have a status in the area where the lower middle and working class overlap.

The are generally no distinct boundaries between communities as compounds in contiguous villages over lap.

As such they are conceptual constructs, usually lacking distinct boundaries.

But they have distinct boundaries and, according to some accounts, dissimilar personalities.

Although these distinctions have been made with many patients, there is still some difficulty in defining distinct boundaries between these two similar conditions.

Social classes in the United States lack distinct boundaries and may overlap.